CVE-2009-4444

Microsoft Internet Information Services (IIS) 5.x and 6.x uses only
the portion of a filename before a ; (semicolon) character to
determine the file extension, which allows remote attackers to bypass
intended extension restrictions of third-party upload applications via
a filename with a (1) .asp, (2) .cer, or (3) .asa first extension,
followed by a semicolon and a safe extension, as demonstrated by the
use of asp.dll to handle a .asp;.jpg file.

References

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Phase (Legacy)

Assigned (20091229)

Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)

N/A

This is an entry on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.